Method of making reinforced chime construction for cans or containers



Nov. 6, 1945.

L B. WACKMAN METHOD OF MAKING REENFORCED Filed May 7, 1943 INVENTORZbawfii Z'wfm -l||| I L I Patented Nov. 6, 1945 REINFORCED CIIIMR R CANSR .CON-

. METHOD or MAKING CONSTRUCTION F0 TAINERS Louis B. Wackman, RichmondHeights, Mo.

Application May "7, 1943, Serial No. 485,978;

2 Claims. I (Cl. 1-13-f-121) This invention relates to a method of makina reinforced chime construction for cans or con tainers. 1 I An objectof the invention is to provide a method of making a can or container topresent a flush outer surface on the container wall.

A further object is to provide a method of making a chime of an improvedconstruction to containers having permanently secured counter-sunkheads.

Another further object is to provide a method of making an improvedchime at both ends of a container by folding parts of the heads and thecontainer wall together without the application and use of a crimpingring.

The invention also pertains to the end conchime of parts which arefolded together in a manner so as elevation showing the flanges of thehead and body walltogether, In

end of the container body and having the head flange engaged against thebody flange.

Figure 6 is an enlarged; fragmentary sectional last steps of folding thecrimped securance, to form the chime and tqprovide a seal-tight jointbetween the head side wall struction of containers presently made ofsheet metal and the invention in particular residing in the manner ofuniting the heads to the container body to provide improved chime endsthereto and to further reinforce the container adjacent its ends bybeading to form a seal-tight joint between the heads and container body.

Qther and further advantages will appear as this description progressesand by reference to the drawing, in which- Figure 1 is a verticalsectional elevation through the upper end of a container showing thisimproved reinforced chime construction applied thereto.

Figure 2 is an enlarged fragmentary sectional portion of one of thecontainer heads showing the first step in the formation thereof to adaptit for securing cooperation with the container body.

Figure 3 is an enlarged fragmentary sectional levation showing thesecond step in the formation of the head portion shown in Fig. 2.

Figure l is an enlarged fragmentary sectional elevation through theupper portion of the container body wall showing the step required informing an outwardly and downwardly disposed annular flange in readinessfor the head insertion therein in the manner as shown in Fig. 5.

Figure 4a is an enlarged fragmentary sectional elevation through theupper portion of the container head showing a further step of downwardlydeflecting the preformed flange of the head for engagement with thecontainer bodywall flange, as shown in Fig. 5.

Figure 5 is an enlarged fragmentary sectional elevation showing the headinserted in the upper and the body wall.

Referring by numerals to the accompanying drawing, the body I of thecontainer has a counter-sunk head 8 with the extending end of the sidewall 9 in folded and crimped securance with the body wall Ila, at theupper end thereof to provide the improved container chime l0, shown inFigs. 1 and 6.

As both the upper and lower heads of the container are similar and aresecured to the container body wall in the same manner, only the upperhead 8 is shown and described.

The head 8 in its formation has the end wall II and an outwardlyextending annular flange l2 at the free end of the side wall 9, and theend wall having the filling and dispensing opening l3 for the receptionof a closure cap, not shown.

After the head 8 has been formed to provide the right-angular flange l2on the outer end of the side wall 9 thereof as shown in Fig. 2, formingrolls M-l 5 are engaged against the side wall 9 of the head to providean inwardly disposed relatively deep recess l6 beneath the flange l2,and to form an annular groove IT in the side wall 9 adjacent and abovethe end wall ll of the head 8 as shown in Fig. 3.

The body wall Fla is operated on at its upper end to provide anoutwardly disposed depending annular flange I8, and said flange may ifrequired, be downwardly bent against the wall as shown at IS in dottedlines in Fig. 4.

The flange l2 of the head 8 is then operated on by dies or other formingdevices to deflect the flange to the approximate angle shown in Fig. 4a,in readiness to receive the depending flange l8 of the body wall llathereunder, when the head is forceably inserted in the upper end of thecontainer body I, as shown in Fig. 5. I

After the insertion of the head 8 in the con.- tainer body I, a die 20having an annular deflecting flange part 2| is engaged to operate on theflanged ends of the head and body, ready to downwardly press and foldthe respectiveflanges l2 and [B into the annular recess l6 of the side.

ofthe outer surface of the into the recess l6 of the head with theflange I2 of the head in flush alignment with the outer surface of thebody wall Ha of the container, thus completing the formation of thisimproved chime II] as shown in'Fig. 6, however, after the inner surfacesof the folded and crimped together parts have been soldered or tinned toprovide an extremely tight joint. I

Simultaneously with the crimping or folding securance of the flanges|8I2 in the recess I6 an annular groove 23 may be formed in the bodywall Ila to press an inwardly disposed bead 24 into seating engagementwith the groove H of the head 'side wall 9 to form a seal-tight jointbetweenthe head and body wall outwardly of and adjacent the end wall Ias shown in Fig. 6.

The aforedescribed method of making this improved chime end constructionto metallic containers and the like provides an extremely strongchime'at each end of the container without the inclusion of areinforcing or clamping ring heretofore used in chime construction andby reason container being flush, sliding of containers oneupon anotheris enhanced.

Obviously, constructional modifications of the l of the head 8, alsostructure and/or method shown are possible without departing from thespirit and scope of the present invention and therefore it is to beunderstood that it is not necessary to limit the invention by the termsused in the foregoing description.

What I claim is:

,1. The method of making a container chime consisting of forming aflanged counter-sunk head with a pair of annular recesses in the sidewall thereof, of fianging an end of a container body, of mounting thehead in the flanged end of the body, of pressing the flanges of the headand body into one of the recesses of the head, and of pressing the bodyinto conformity with the other recess of the head.

2. The method ofmaking a container chime consisting of forming a flangedcounter-sunk head with a pair of annular recesses in the side wallthereof, of flanging an end of a container body, of mounting the head inthe flanged end of the body, and of simultaneously pressing the flangesof the head andbody into one of the recesses of the. head and the bodyinto conformity with the other recess of the head.

' LOUIS B. WACKMAN.

